catchpole



2 Sheet-Sheet 1.

A'. GATOHPOLE.

STEAM BOILER.

No. 354,392. Patented De0f14, 1886.

n nfl u l hmm WITNESSES:

ATTORNEYS N. PEIERS. Fhukrfilhogmaher. Washingm. n. c

(No Model.) 2 Sheets.Shet 2.

A. GATOHPOLE.

STEAMBOILER.

Patented Dec. 14, 1886.

ATTORNEZSL N. PETERS. Phoiwhlhogriphur, Wasmngium o. c.

UNIT ED STATES PATE T ()FFICE.

ALFRED GATCHPOLE, OF GENEVA, NFJV YORK S EAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 854,392, dated December 14, 1886.

Application filed September 15, 1886. Serial Kc. 213,588. (No model.)

To all whom it may concern:

Be it known that I, ALFRED OATCIIPOLE, of Geneva, in the county of Ontario, in the State of New York, have invented new and useful Improvements in Steam-Boilers, of which the following, taken in connection with the accompanying drawings, is a full, clear,

and exact description.

This invention relates to steam-boilers or Waterheaters specially adapted for heating hothouses and other-buildings.

The invention consists in a novel construc tion of an upright boiler which has its height reduced to a minimum, and is thus better adapted for use in a low room, and at the same time possesses superior capacity for heating water with great economy in the consumption of fuel, and also possesses other advantages, as hereinafter fully explained.

In the accompanying drawings, Figure 1 is a front elevation of myiinproved boiler. Fig. 2 is a vertical transverse section of the same, a portion of the fuel-magazine being broken away to better illustrate the connect-ion of the coiled pipe with the hollow fire-pot wall. Fig. 3 is a top plan view of the fire-pot-with the adjacent parts of the boiler shown in dotted lines, and Fig. 4 is a top plan view taken in the plane through 00, Fig. 2.

Similar letters of reference indicate corresponding parts. 4

A represents the ash-pit, the wall, of which are formed of masonry, upon which the boiler is supported.

D designates the grate, which may be of any suitable and well known form, preferably formed in one piece and pivoted to permit of shaking and dumping it.

To facilitate the introduction of the grate into its requisite position at the top of the ashpit and its removal therefrom when required for repairs or renewal, I form the frame of the ash-pit door Fwith lateral extensions F of its opening, and thereby enlarge said opening, so as to permit of passing the grate through it. The extensions F are provided with removable covers, preferably separate from the door F. Upon the wall of the ash-pit is seated the fire-pot B, which I form of a water-tight hollow wall, from the side of which projects a branch pipe, I, for the attachment of the water-induction pipe, and from the top of said hollow wall projects a branch pipe, L, for the attachment of the coiled pipe P.

The described fire-pot, with the branch pipes I L, I cast in one piece, and thus obviate leakage incident to weal: joints. To the branch L, I attach a coiled pipe, 1?, which rises from the fire-pot at only a slight angle of inclination, and has spaces a a between the successive helices. The aforesaid coil is of a smaller diameter than the fire-pot, and is thus made to project over the inner side thereof and become more exposed to the impingement by the products of combustion rising from the fire-pot.

From the upper end of the coil-pipe is extended a water or steam pipe, 1), which conveys the hot water to the apartment to be heated.

Around the exterior of the lire-pot B, I build a wall, N, with an air space or jacket, a, between them,for the purpose of retaining around the said fire-pot the heat radiating therefrom and preventing, as much as possible, the penetration of the heat through the wall N.

The coiled pipe P, I iuclose in a combos tion-chambcr, 0, formed of a casing, O, which is secured at its base to lugs l, projecting from the exterior of the fire pot. Said casing rises to an elevation above the coiled pipes P, and is preferably contracted ciroumferentially toward the top, where it has secured to it a cap or plate, d, which is provided with an opening at its center.

Upon the plate (Z is mounted and firmlysecured another plate, f, which is either provided with an opening and suitable cover or formed with a hopper, H, at the center, and with an annular downward-projecting flange, 0, on its under side, which flange is of greater diameter than and concentric with the opening of the hopper H, and from said flange is sive coils of the pipe P, and up on both sides "thereof, and thereby effectually heat said pipe.

The water in the hollow wall of the fire-pot, being subjected to the greatest heat and ex- .panded more rapidly than the water in the upper part of the coil P, causes the water to rise from the fire-pot wall into the coil P, from which latter it escapes in an intenselyheated condition into the pipes which circulate through the apartments to be heated. The influx of water through the inlet-pipe I into the fire-potwall keeps up the circulation of the water through the boiler.

I do not limit myself to a single coil of pipe, I, as it is obvious that another coil of pipe may be arranged at the outside of the described coil and suitably connected with the hollow wall of the fire-pot.

Having described myinvention, what I claim as new, and desire to secure by Letters Patent, 1S

1. An upright boiler comprising a fire-pot formed of a water-tight hollow wall, a coil or coils of pipes rising from said wall and communicating with the interior thereof, and a combustion-chamber inclosing said coils, substantially as set forth.

2. An upright boiler comprising a fire-pot formed of a Water-tight hollow wall, a coil or coils of pipes rising from said wall and communicating with the interior thereof, acombustion-chamber inclosing the coils, a waterinlet to the hollow wall, and a water or steam pipe extended from the coils, substantially as set forth and shown.

3. In a water-heater, the combination of a water-tight hollow wall encompassing the firegrate and rising above the same, a coil of pipe rising from said wall and communicating with the interior thereof, said coil being of a smaller diameter than the aforesaid wall, to project over the inner side of the same, a combustionchamber inclosing said coil, a water-inlet to the aforesaid hollow wall, and a water or steam pipe extended from the coil, substantially as set forth.

4. The fire-pot B, consisting of a water-tight hollow wall provided with the branch pipes I L, all cast in a single piece, as set forth.

5. The combination of the fire-pot consisting of a water-tight hollow wall provided with a water-inlet, a coil or coils of pipes rising from said wall and communicating with the interior thereof, a combustion-cham ber inclosing said coils, and a fuel-magazine in the center of the coils, substantially as described and shown.

6. In combination with the fire-pot and combustion chamber, the top plate, d, provided with a central opening, the plate f, secured to the plate (1 and formed with the .hopper H, the cover h in said hopper, and the magazine M, suspended from the platef, substantially as described and shown.

7. In combination with the ash-pit and firegrate, an ash-pit doorframe formed with lateral extensions of its opening to allow the grate to be inserted under the fire-pot and removed therefrom through the aforesaid door, substantially as set forth.

8. The combination,with the fire-pot B,ofthe lugs Z, projecting from the exterior thereof, and the casingO, secured to said lugs and rising above the fire-pot, as shown and set forth.

In testimony whereof I have hereunto signed my name and affixed my seal, in the presence of two attesting witnesses, at Geneva, in the county of Ontario, in the State of New York, this 2d day of September, 1886.

ALFRED OATGHPOL E. 

